by Nic Lewis Official estimates of future global warming may be overstated. A brief summary in press release style of my new paper (written in the third person) One of the most important conclusions of the recent 6th Assessment Report … Continue reading →
by Michel de Rougemont Not so innocent as it looks, a pertinent question is asked by Judith Curry on Twitter: How much of a change in cloudiness would it take to account for the 0.53 W/m2 increase in TOA radiative … Continue reading →
By Nic Lewis An important paper, Wang et al.[1], on the relationships between cloud feedback, climate sensitivity (ECS) and aerosol-cloud interaction in the latest generation of global climate models (CMIP6) has just been published. The key conclusion of the paper … Continue reading →
by Alan Longhurst Natural climate variability in the polar regions. If our planet had been designed with comparative high-latitude studies in mind, it couldn’t have been better arranged than it is. The 700N parallel encloses extensive continental regions that were … Continue reading →
By Nic Lewis A critique of the paper “Greater committed warming after accounting for the pattern effect”, by Zhou, Zelinka, Dessler and Wang. Key points The pattern effect is the dependence of outgoing radiation to space on the spatial pattern … Continue reading →
by Kenneth Fritsch Abstract. An analysis is presented of he disconnection between the CMIP5 and CMIP6 Historical and Future periods when considering the relationship of the individual model GMST changes and the climate sensitivity. I have included a simple model … Continue reading →
By Nic Lewis An important new paper by Thorsten Mauritsen, Associate Professor at Stockholm University[i] and myself has just been accepted for publication (Lewis and Mauritsen 2020)[ii]. Its abstract reads: Recently it has been suggested that natural variability in sea … Continue reading →
By Nic Lewis This is a brief comment on a new paper[i] by a mathematician in the Exeter Climate Systems group, Femke Nijsse, and two better known colleagues, Peter Cox and Mark Williamson. I note that Earth Systems Dynamics published … Continue reading →
by Patrick J. Michaels A new paper finds higher than expected CO2 fertilization inferred from leaf to global observations. The paper predicts that the Earth is going to gain nearly three times as much green matter as was predicted by … Continue reading →
by Judith Curry
A range of scenarios for global mean surface temperature change between 2020 and 2050, derived using a semi-empirical approach. All three modes of natural climate variability – volcanoes, solar and internal variability – are expected to act in the direction of cooling during this period.
